Data/hora: 09/06/2024 01:06:23

Provedor de dados: 	76	
País: 	Brazil	
Título: 	Tetraploidía en Ceratophrys (Anura, Leptodactylidae), análisis del registro fósil	
Autores: 	Mercadal de Barrio,Isabel T.; Barrio,Alfonso.	
Data: 	2002-09-01	
Ano: 	2002	
Palavras-chave: 	Amphibia; Ceratophrys; Fossil; Osteocyte lacunae; Tetraploidy.	
Resumo: 	It has been confirmed the existence of the tetraploid counterpart of the genus Ceratophrys Wied, 1824 (extint at the present time) in Argentina and Brazil since the Pliocene, and the apparition of the octaploidy in the Upper Pleistocene - Holocene. Fossil material of the diploid form, distinctive of the Chacoan District, has been reported from the horizons of the Montehermosense Formation in south-east of the province of Buenos Aires, Argentina. The coexistence of diploid-tetraploid and tetraploid-octaploid forms in the same province was documented.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Espanhol	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212002000300003	
Editor: 	Museu de Ciências Naturais	
Relação: 	10.1590/S0073-47212002000300003	
Formato: 	text/html	
Fonte: 	Iheringia. Série Zoologia  v.92 n.3 2002	
Fonte: 	info:eu-repo/semantics/openAccess